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Compute cost per hire using the company definition

  • For FP&A and financial analysts
  • You practice Setting limits and rules
  • Time about 5 minutes
  • Level Beginner

About this exercise

You're calculating cost per hire for HR and Finance. Write a prompt for plain text with lines starting "Agency fees:", "Referral bonus:", "Job ads:", "Total:" and "Cost per hire:". Agency fees are 20% of first-year salary. Cost per hire counts recruiting costs only (agency fees, referral bonuses and job ads) divided by the number of hires; equipment and onboarding are left out. Show the math. Under 70 words.

Common mistakes when you ask AI for this

  • Adding equipment and onboarding. The AI includes every cost in the material. Try: Say: "Use the company definition: recruiting costs only."
  • Fee on all three hires. The AI applies the agency fee to Hire B. Try: Add: "Agency fee applies to agency hires only."
  • Skipping the math. The AI states $15,000 with no steps. Try: Add: "Show each calculation."
  • Markdown extras. The AI adds bold labels, headings and a closing note. Try: Say: "Plain text, no bold. Output only the lines asked for."
  • Trusting the AI to count words. AI is bad at counting and runs past word limits. Try: Ask for fewer words than the real cap and keep each part short.

What a strong prompt includes

  • Names the five lines
  • Uses the company definition
  • Applies the agency rate
  • Asks for the math
  • Caps length

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